Poppet-valve self-correcting means



Sept. 11, 1928.

H. R. KIESSIG POPPET VALVE SELF CORRECTING MEANS 2 Sheets-Shed Filed Dec. 14, 1926 R O T m V N l.

ATTORNEYS.

Sept. 11, 1928. 1,683,903

H. R. KIESSIG POPPEfr VALVE SELF CORRECTING MEANS Filed Dec. 14, 1926 -2 s eets-sheen. 2

Fi .7 A Fig.9;

32c 256 at:

VIII" 5 correct-ion of the-seating faces by preventing I Patented Sept. 11, 192 s.

, UNITED STATES HARRY n. xlnssiefor SAN DIEGO,- CALIFORNIA.

rower-VALV SELF-CORRECTING MEANS.

'Applioation filed Decernber 14,1926. Serial No. 154,702.

My invention relates to poppet-valves,

and more particularly to means whereby such valves may be rotatively adpisted, from time to time, in "order toeffect the the localization of wear or deterioration.

The principal object of my invention is to provide such'a device of simple form, and

to combine it wit-hthe usual means for retaining the spring abutment upon the valve stem, inorder to avold multiplicity 'of'parts- A further-object is to provide such a device which may be readily adaptedto any of the forms of spring retaining keys common use. A still further object isto provide means for conveniently grasping the device, either by the hand or'wlth a suitable tool,

when it is desired to turn the valve to a new position, and to provide suitable marks or indicia upon the device so that theyalve may be turned to the desired position.

Other objects and advantages ofthe inven c tion will be, apparent fromthe following description, which should be read with the understandlng that changes, within, the scope of the appended claims,- may be made in-the form, construction and arrangement,

of the several parts, without departing. from the'spiritof the invention as set forth in said claims.

With this be described companying in view'niy invention will now fully with r'efe're'nceto the acdrawings, wherein I Fig. 1 is .a' plan or end View, partly in sec tion, of a preferred form of my device as applied to a well known form of retaining key which extends through a SlOiJlIl the valve stem, and illustrating, in dotted lines,

a convenient form of tool for turning. the

valve by engagement with my improved dial or turning member. -This view; is taken on the line 11-'of Fig. 2.

Fig. 2 is a section on'the line 2 2 of Fig. 1. I

Fig. 3 -form of dial or turmng the method of forming lugs. Fig. a: is a section on formed. v

Fig. 5 is a plan or end view, partly in section, of my preferred form of dial or turning member as adapted for the reception of a well known form of U-shaped re.- taining key." r

member, showing v the spring bears.

is a plan view of my preferred the key-engagingthe line 1-4 of Fig. showing the lugs after they have been.

Fig. 5.

'Fig. 8 is afsection on the line 8-8 of Fig.7.

Fig. 9-is aside elevation, enlarged, of

one half of a slightly different form of:

split-cone key, and is taken on the line 9-9 'of Fig. 10, the valve stem'being omitted for the sake of clearness. I

Fig. 10 1s atransverse section showing the-inter-fitting' relation between the form of key shown in Fig. 9 and the valve stem,

and is taken on the plane of the line 10l0 of'Fig. 9.

Fig. 11 is an elevation of-a valve stem shown inFig. 10. :Fig. 12' is a part-sectional perspective view of a-modified form of dial 'or turning member as adapted for the reception of a straight key extending through a slot in the valve stem. In the drawings, and-referring for the moment to'Figs. 1 and 2 thereof, the referportion the ence numeral 1' designates a poppet valve having a stem 2. A portion of the usual springfor closing the-valve is shown at 3.;

4 is an abutment or washer against which '5 1s 1a member which is removably secured upon'the, end portion of the valve stem for retaining the washer 4:

and the spring 3 in place. If desired, an antl-frlct on' bearing washer 6 may be interposed between the spring abutment 4 and.

the member 5, for a purpose to be," described hereinafter.

" The valve stem 2 is'piovided with a trans- V verse key way 7 extending through it and usual manner. The member 5 is provided with a depression9 in its outerface, within which the key 8 lies. Thus the key retains the member 5 upon the stem, and said memher, by its depress on9,]reta1ns the key in- Fig. 6 is a section on the line 66 or is a plan or'end view, partly in 7 adapted for the reception of a key 8 in the prevented from turning thereon by said key, so that tlie valve may be turned by turning said ll'iOllllJQl' 5. For this purpose the member is provided with raised lugs suitably spaced to enable the key to lie between them, as shown. H

I prefer to make the turning member 5 from a flat pi cc of metal, the first step beingtliepi'essing. of it into cupped shape to provide the depression 9, and the'punching of a central hole ll, shown in Zlhis central liole-isirregular, as shown, with tonguosl2 projecting .into it. --'lhen by means of su"v able dies, not shown, said tongues 12 are be .10, as shown in Fig. 4. In this operation, the -lugs 10 are sheared out and bent as indicated by the dotted lines in Fig. By

this method the member 5 is formed very cheaply v 3 The rim of the member 5 is preferably formed with notches 13, to enable it to be easily grasped, either by hand or with a suitable tool. As one form of such a tool, I have shown, in dotted lines in Figs. 1 and 2, a pair of pliers 1%, whose aws are formed with flat guide portions adapted to lie againstthe outer face of the member 5,'an'd with downwardly projecting lugs 16 to engage the notches 13 of said member. The bottoms of said notches are preferably formed with an'nndercut slop e,as shown,

' I andlthelugs 16' of the tool are: similarly sloped, so that, when said tool is in position. it cannot slip off the member 5 without being released, the sloping notches 13 and lugs 16 preventing it from; slipping off upwardly, I and the flat guide portions 15 preventing it from slip iing downwardly. The tool may,

therefore, be used even while the valve is in operation.

.Theriinportion of the member 5 is preferably provided with suitable marks or indicia 17, which may be in the form of numerals, as'sliown. In order that these lllCllCltL may be as large as possible, to be more easily seen, they are preferably placed between the notches 13. It is also preferable,

for reasons to be set forth later, to space the indicia by progressively increasing d stances, and in order to permit such spacing, thenotches 13 are best located in pairs in the 1 n'iann'er shown. By this means the notches are symmetrically positioned, to facilitate engagement by a grasping tool as described above, and still do not limit the size of the in'dicia nor interfere with the progressively increasing spacing thereofL;

'Theuse of the device, assuming it to be applied to the valves of an automobile e ngine, for example, is as follows. When the valves are'newly' ground, they are all set with the numerals 4 opposite some fixed part the engine. Then after the engine has run for a; certain time, corresponding, say,

zit upwardly to form the lugs to 300 miles running of theautoniobile, the valves are turned, by hand or by a suitable teolas described, to brin the numerals 1' tothe former position or the numerals 4. T his brings different portions of the valve face and seat into contact, and the natural percussive action of the valve upon its seat, in the new positiombeats out and corrects any impairment of the valve. face or, seat which may have been sustained during the previous setting onposition. After another fieriod. of runninothe valves are a 'ain l so O turned to the next numeral, and so on. It is desirable toturn the valve back and forth a few times before making eaehfsetting, to loosen carbon. i v V It is necessary to turn the valves through different arcuate distances'each tiinethey are,

adjusted, toprevent the reengag'enient-of correlative points. Thus if the success ve positions or settings are spacechsay, by 50, 80,105, and 125 degrees, thenbeginning over again with 50 degrees, the meeting faces of the valves-and their seats wi'll'be, always brought to newpositions at each setting, no matter how many i s-settings :may be made, and the faces and seats'of the valves, as well as their stems and guides, will be kept in goo'dcondition indefinitely, Itiis for this reason that I 'pr'efer'to space, the IDClIClEL on the member -5 by progressively-increasing distances, so the optimum settings can be de-.

terinined instantly,

toturn the valve for any other purpose, as. for example todislodge carbon from 'the proper andfconvenient operation. "It shouldbe noted, in this connection, that the key is housed within the depressionofi the member 5, and is retained in position by the side wall J3 p V I or said depression. The advantages of such art, are thus retained. I I we I In Figs. 5 and 6 I have shown my turning member designated 5*, as adapted for the re ception of a U-shaped key. The lugs 10*, instead of being bent upwardly from the bottom of the turning member as before, are bent inwardly from the. sides of its depression 9, and engage notches 18 in thefsides construction, which are well known inthe viy device is also, of usewhen i'tf'is desired use of a lubricantsucl'i of the key 8". The key itself'is provided with a slot 19, the sides of which engage opposite straight-bottomed grooves 7 a in the valve ,stem 2. As a, further precaution against turning upon saidstem, the key is provided with a tongue 20 Fig.- '5, engaginga corresponding notcliin the valve stem.

In Figs. 7 and 8 I have shown my turning member,designatedfi", as adapted for the reception of a split-cone key.- As in the form shownin Figs. and6, the ikey engaging lugs 10 are bent inwardly from the sides ottlie depression 9 and engage notches 18" in the outer, edges of thefkey members 8". The depression 9 is conical,

In this form the stem 2 circumferential groove same turning member as vides a continuous shoulder 24 (Fig. 11) 'to resist the thrust of the valve spring, and at the same time providessubstantial radial shoulders-25 '10) to resist turning. The key 8 is adapted for reception in the Figs. 7 and 8.: I

1n Fig. 12 I have shown a form of my device in which the key S is provided with prongs or extensions 26 upon itsends,which tit into notches 27 in the turning member 5, the sides of said notches forming abutments 10 having thesaine function as the lugs 10 of Figs. 1 and 2. The valve stem 2 is the same as that of Figs. 1 and 2, having a transverse slot 7 through which the key 8 .passes.

Fig..12 also illustrates a regularspacing of the notches 13 in the rim of the turning member, and a similar regular spacing of the indicia 17. I

It is to be noted that, inall forms of the device, the turning member is formed with a depression in which the key is seated and by which said key is retained in position,

and that means are provided for preventing relative rotation between said member and the valve stem. The turning member thus performs two functions; it serves as an abutment and as a housing and retainer for the key, and as a member by which the valve may be turned, The turning member may be provided with a dial as described and shown to make possible systematic re-posi tioning of the valve.

I claim n 1. In combination with a poppet valve having a stem and a spring surrounding said that shown at 5 in I -rece1ving the end thrust of said spring, said member having a central depression and a stem, amen b'er mounted upon said stem and havinga depression in ts tace, said member receiving the end thrust of said spring; and

means seated within and held in position by said depression for separably retaining said memberupon said stem, said-means having non-rotativeengagement with the valve stem and withsaid ine nber.

, In combination with a pop pet valvd having astemand a spring surrounding said stem, a iiie'mber mounted upon said-stem and having a depression in 7 its face, said afkey seated within and held in positionby said depression, said key having non-rotative engagement with the valve stem and with said member tor retaining saidmember upon said stem. I I

3. In combination with a poppet valve having a stem and a spring surrounding said stein, a member mounted upon said stem and havinga depression in its face, said member receiving the end thrust of said spring; a key non-rotatably associated with said valve stem, said key being seated in and "held in position by said depression; and an abutment formed in thewall of said depression for engaging said key to hold said member innon-rotative relation upon said stem. f 4.

having a stem and a spring surrounding'said stem, a member mounted upon said stem for rim ,formed with peripheral grasping notches; and means seatedwithin and held in position by'said depression for separably retaining said member upon said stem, said means having non-rotative engagement with the valve stem and with said member.

' 5. In combination with a poppet valve having a stem and a spring surrounding said stem, a member mounted uponsaid stem for receiving the end thrust of said spring, said member having a central depression and a rim formed with peripheral grasping lncombination with a I poppet valve p I v member receiv ng the end thrust ot said spring; and

notches; said notches being disposed in pairs symmetrically about" the periphery of said run; visible indicia upon said rim, said indicia being disposed between said notches and separated by progressively increasing distances; and means seated within and held in position by the depression of said memberfor retaining it in iionrotative relation upon said stem.

6. In combination. with a poppet valve having a stem and a spring surrounding said stem, a member mounted upon said stem for receiving the end thrust of said spring, said member having a central depression and a surrounding ,rim; visible indicia upon said rim; and means seated within and held in position by said depression for separably retaining said member upon said stein, said means having non-rotative engagement with the valve stem and with said member.

7. In combination with a poppet valve havin a stem and a spring Surrounding said stem, :1 member mounted upon said stem and 'havinga dpiessi'on in its face, said inenlber' receiving the end thrust of said spring; a key non-rotatably associated with said stem.

said valve stem, said key being seated in and held in position by said depfssion; anda lug extending into said depression from its- 7 Wall and adapted to engage said key to hold said member in nonrotative' rlation upon In combination Wifl'i a poppt 1 valve having a stemvand a splin surround ng said stein, a inen'ibr mount-ea upon said s tem for receiving the end thfrusi; wkoy associated in non=rotativo r with said stem for 'sepambly retaining said 'lnelnber th6I' GU'pOIl; and a 111g adapted to engzige 'siiicl'key, said lug being formed by partially cuttingout a portion of said 1119111 HARRY'R. I ESSIG.

of said 3 ring; 

